What bent over the shoulder?

When no one is looking, a mini "moon" in the night sky has left.

We are far away. This mini "moon" is astronomy at the beginning of this year.

Scientists have discovered a small satellite orbiting the earth and conducted related research.

Tables in astronomy magazines. Now it's gone, but it's very

Come on, scientists may find more similar earth friends.

companion

In February this year, astronomers from the American Catalina Sky Survey System sent a message.

A dim celestial body named 2020CD3 was discovered. while

At that time, astronomers were not sure whether it was a tiny satellite or a fire.

Artifacts, such as bow and arrow boosters. In the next few months,

Grigori Fedorets, Queen's University Belfast, UK.

And his colleagues, using astronomical telescopes around the world, to understand this faint

The dark celestial body made more measurements and finally determined its identity.

A small satellite orbiting the earth.

This mini "moon" is about 1.2 meters in diameter and entered about 2.7 years ago.

Earth orbit. Judging from the color and brightness, it may look like a small line.

Many other celestial bodies in this belt are made of silicate rocks.

Yes In addition, the researchers also tracked its orbit and tried.

Find out its source before it enters earth orbit.